模糊-PID控制器在静电悬浮转子微陀螺起支控制中的应用  

Research on the Fuzzy Hybrid PID Controller and its Application in the Initial Levitation Control of Micromachined Electrostatically Suspended Gyroscope

作　　者：肖奇军[1] 李胜勇 陈文元[3] 刘超英[1] 崔峰[3] 黄伟[1] 

机构地区：[1]肇庆学院电子信息与机电工程学院,广东肇庆526061 [2]厦门蒙发利科技(集团)股份有限公司,福建厦门361009 [3]上海交通大学微纳科学技术研究院,上海200030

出　　处：《机械与电子》2013年第8期54-58,共5页Machinery & Electronics

基　　金：广东省自然科学基金博启项目(S2011040001279);肇庆学院2012年度自然科学青年基金(201207);肇庆学院第四轮重点学科建设基金(801113)

摘　　要：针对起支控制的非线性特性,提出了模糊-PID控制器。当转子远离平衡位置时,采用模糊控制提高快速响应特性,在平衡位置附近采用PID控制器以消除系统的稳态误差。实验结果表明,采用模糊-PID控制,超调量从27%减小到20%,调节时间为25ms,显示了良好的动态性能和全局稳定性。Aiming at the nonlinear characteris- tic of the levitation control for MESG, the paper presents fuzzy hybrid PID control to levitation control system based on the mathematical model, when the rotor moves far away from null position, fuzzy control is applied to improve the system＇s rapidity while applying PID control to erase the steady - state error to improve the system＇s steady charac- teristic when the rotor moves near the null posi- tion. The experimental results demonstrate that, with fuzzy hybrid PID control,the overshoot is reduced to 20% compared with 27% of conventional PID control. The setting time is 25ms, which showsgood dynamic performance and global stability.

关 键 词：静电悬浮 微陀螺 起支控制 模糊-PID控制 

分 类 号：U666.1[交通运输工程—船舶及航道工程]